BOTANY

Detailed explanation-1: -The texture of soil is determined by the proportions of particles of different sizes. Coarse sand particles are of 0.2 to 2.00 mm in size; 0.02 to 0.2 mm particles constitute fine sand; 0.002 to 0.02 particles represent silt and particles smaller than 0.002 mm are called clay.

Detailed explanation-2: -Silt: all particles within the size range of 0.002-0.05 mm; Clay: all particles smaller than 0.002 mm.

Detailed explanation-3: -Starting with the finest, clay particles are smaller than 0.002 mm in diameter. Some clay particles are so small that ordinary microscopes do not show them. Silt particles are from 0.002 to 0.05 mm in diameter. Sand ranges from 0.05 to 2.0 mm.

Detailed explanation-4: -The textural triangle method is based on the USDA system of particle size where the following classification is used: Silt: all particles within the size range of 0.002-0.05 mm; Clay: all particles smaller than 0.002 mm.

Detailed explanation-5: -How you refer to the soil particles is actually based on their size: Gravel-particles greater than 2 mm in diameter. Coarse sand-particles less than 2 mm and greater than 0.2 mm in diameter. Fine sand-particles between 0.2 mm and 0.02 mm in diameter.